FR2203423A5 - - Google Patents

Info

Publication number
FR2203423A5
FR2203423A5 FR7335818A FR7335818A FR2203423A5 FR 2203423 A5 FR2203423 A5 FR 2203423A5 FR 7335818 A FR7335818 A FR 7335818A FR 7335818 A FR7335818 A FR 7335818A FR 2203423 A5 FR2203423 A5 FR 2203423A5
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7335818A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Application granted granted Critical
Publication of FR2203423A5 publication Critical patent/FR2203423A5/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/443—Free-space packings provided with discharge channels

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
FR7335818A 1972-10-11 1973-10-08 Expired FR2203423A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1479072A CH550348A (en) 1972-10-11 1972-10-11 BARRIER MEDIUM LABYRINTH SEAL.

Publications (1)

Publication Number Publication Date
FR2203423A5 true FR2203423A5 (en) 1974-05-10

Family

ID=4403848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7335818A Expired FR2203423A5 (en) 1972-10-11 1973-10-08

Country Status (9)

Country Link
US (1) US3906730A (en)
JP (1) JPS4972502A (en)
CH (1) CH550348A (en)
DE (1) DE2253839C3 (en)
FR (1) FR2203423A5 (en)
GB (1) GB1404701A (en)
HU (1) HU170788B (en)
NL (1) NL173204C (en)
SE (1) SE388454B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078809A (en) * 1977-01-17 1978-03-14 Carrier Corporation Shaft seal assembly for a rotary machine
US4193603A (en) * 1978-12-21 1980-03-18 Carrier Corporation Sealing system for a turbomachine
DE2940943C2 (en) * 1979-10-09 1984-09-06 Helmut Dipl.-Chem. 8000 München Ulrich Contactless or non-contact sealing system for sealing gas-filled or steam-filled rooms
US4368895A (en) * 1980-12-01 1983-01-18 Mitsubishi Denki Kabushiki Kaisha Shaft sealing device utilizing a non-uniform groove depth
DE3127959A1 (en) * 1981-07-10 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Labyrinth seal (gland, packing) for seal fluid
JPS5951109A (en) * 1982-09-17 1984-03-24 Hitachi Ltd Condenser vacuum holder of steam power plant
JPS6251701A (en) * 1985-08-29 1987-03-06 Fuji Electric Co Ltd Total flow turbine
EP0268423B1 (en) * 1986-11-14 1992-10-21 Hitachi, Ltd. Gland sealing steam supply system for steam turbines
NZ264077A (en) * 1993-08-02 1996-05-28 Ormat Ind Ltd Geothermal power plant sealing system for containing leakage from high pressure end seal of back pressure turbine
EP1619355A1 (en) * 2004-07-20 2006-01-25 Siemens Aktiengesellschaft Bearing and seal arrangement in a steam turbine
EP1712816A1 (en) * 2005-04-14 2006-10-18 Siemens Aktiengesellschaft Sealing system for sealing a process gas chamber from a chamber to be sealed
EP1961921A1 (en) * 2007-02-26 2008-08-27 Siemens Aktiengesellschaft Seal for a turbo engine
US7458584B2 (en) * 2007-02-27 2008-12-02 United Technologies Corporation Reverse flow tolerant brush seal
JP4898743B2 (en) * 2008-06-09 2012-03-21 三菱重工業株式会社 Sealing structure of rotating machine
US8061984B2 (en) 2009-04-06 2011-11-22 Dresser-Rand Company Dry gas blow down seal
US8888444B2 (en) * 2011-05-16 2014-11-18 General Electric Company Steam seal system
US8961144B2 (en) * 2011-06-30 2015-02-24 General Electric Company Turbine disk preform, welded turbine rotor made therewith and methods of making the same
US20130270775A1 (en) * 2012-04-13 2013-10-17 General Electric Company Shaft sealing system for steam turbines
US9540942B2 (en) * 2012-04-13 2017-01-10 General Electric Company Shaft sealing system for steam turbines
US9003799B2 (en) * 2012-08-30 2015-04-14 General Electric Company Thermodynamic cycle optimization for a steam turbine cycle
CN104074552B (en) * 2014-06-26 2016-07-06 江苏金通灵流体机械科技股份有限公司 Utilize the system and method for packing cooling down high-temperature turbine rotor
DE102014226954B3 (en) * 2014-12-23 2016-06-30 Robert Bosch Gmbh Expansion machine with shaft seal and valve
CN107725119B (en) * 2017-12-06 2024-01-12 中国船舶重工集团公司第七0三研究所 Nested vapor seal balance structure of high-pressure chamber
CN109145420B (en) * 2018-08-08 2022-12-16 中国船舶重工集团公司第七一九研究所 Pressure modeling method based on pneumatic equipment air isolation
CN112594013B (en) * 2020-12-11 2022-03-01 西安交通大学 Device and method for sealing shaft end of organic working medium turbine and recycling working medium
CN112855942B (en) * 2020-12-28 2022-04-12 东方电气集团东方汽轮机有限公司 Shaft end sealing system of closed type circulating rotating machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1246039A (en) * 1916-03-25 1917-11-13 Westinghouse Electric & Mfg Co Condensing steam-turbine plant.
DE510720C (en) * 1926-04-12 1930-10-22 Bbc Brown Boveri & Cie Fluid-locked stuffing box for fast rotating shafts, especially steam turbines and centrifugal compressors
GB275726A (en) * 1926-05-12 1927-08-12 Charles Algernon Palsons Improvements in and relating to shaft packings suitable for steam turbines
DE571899C (en) * 1930-08-28 1933-03-07 Paul Wheeler Thompson Device for closing the shaft seals of steam turbines
DE1401440A1 (en) * 1961-01-03 1968-10-24 Licentia Gmbh Device for the automatic control of the working medium passage in the sealing steam lines for the stuffing boxes of multi-housing steam or gas turbines
US3251601A (en) * 1963-03-20 1966-05-17 Gen Motors Corp Labyrinth seal
US3414274A (en) * 1965-06-01 1968-12-03 Harrworth Inc Controlled leakage, close clearance seal system
GB1193800A (en) * 1968-01-04 1970-06-03 Westinghouse Electric Corp High Pressure Fluid Gland System for Rotary Shafts
US3604206A (en) * 1968-07-31 1971-09-14 Gen Electric Shaft-sealing system for nuclear turbines

Also Published As

Publication number Publication date
DE2253839C3 (en) 1984-01-12
US3906730A (en) 1975-09-23
SE388454B (en) 1976-10-04
DE2253839A1 (en) 1974-04-18
NL173204C (en) 1983-12-16
HU170788B (en) 1977-09-28
NL173204B (en) 1983-07-18
NL7313824A (en) 1974-04-16
GB1404701A (en) 1975-09-03
DE2253839B2 (en) 1980-07-24
JPS4972502A (en) 1974-07-12
CH550348A (en) 1974-06-14

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Legal Events

Date Code Title Description
ST Notification of lapse